212) Prandtl number (PN) is given by PN = ?.cp/k.
Answer is:
Yes
Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers
Answer is:
superheated vapour
Answer is:
(2k1xk2)/(k1+k2)
Answer is:
above which a gas will never liquified
Explanation:
Gases can be converted to liquids by compressing the gas at a suitable temperature.
Gases become more difficult to liquefy as the temperature increases because the kinetic energies of the particles that make up the gas also increase.
The critical temperature of a substance is the temperature at and above which vapor of the substance cannot be liquefied, no matter how much pressure is applied.
Answer is: